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Thread pools: replaced completed tasks queue mutex with spinlock.

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This commit is contained in:
Valentin Bartenev 2015-03-23 17:51:21 +03:00
parent 07de3f538b
commit f109a68b4f
1 changed files with 5 additions and 16 deletions
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21
src/core/ngx_thread_pool.c
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@ -99,6 +99,7 @@ ngx_module_t ngx_thread_pool_module = {
static ngx_str_t ngx_thread_pool_default = ngx_string("default");
static ngx_uint_t ngx_thread_pool_task_id;
static ngx_atomic_t ngx_thread_pool_done_lock;
static ngx_thread_pool_queue_t ngx_thread_pool_done;
@ -329,20 +330,12 @@ ngx_thread_pool_cycle(void *data)
task->next = NULL;
if (ngx_thread_mutex_lock(&ngx_thread_pool_done.mtx, tp->log)
!= NGX_OK)
{
return NULL;
}
ngx_spinlock(&ngx_thread_pool_done_lock, 1, 2048);
*ngx_thread_pool_done.last = task;
ngx_thread_pool_done.last = &task->next;
if (ngx_thread_mutex_unlock(&ngx_thread_pool_done.mtx, tp->log)
!= NGX_OK)
{
return NULL;
}
ngx_unlock(&ngx_thread_pool_done_lock);
(void) ngx_notify(ngx_thread_pool_handler);
}
@ -357,17 +350,13 @@ ngx_thread_pool_handler(ngx_event_t *ev)
ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "thread pool handler");
if (ngx_thread_mutex_lock(&ngx_thread_pool_done.mtx, ev->log) != NGX_OK) {
return;
}
ngx_spinlock(&ngx_thread_pool_done_lock, 1, 2048);
task = ngx_thread_pool_done.first;
ngx_thread_pool_done.first = NULL;
ngx_thread_pool_done.last = &ngx_thread_pool_done.first;
if (ngx_thread_mutex_unlock(&ngx_thread_pool_done.mtx, ev->log) != NGX_OK) {
return;
}
ngx_unlock(&ngx_thread_pool_done_lock);
while (task) {
ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,